“For our readers, time is the precious commodity they invest in every book they decide to purchase and read. But time is being ground down into smaller and smaller units, long nights of reflection replaced with fragmentary bursts of free time. It’s just harder to make time for that thousand-page novel than it used to be, and there are more and more thousand-page novels to suffer from that temporal fragmentation.” Tor.com on why novellas are the form of the future.
To Kill a Mockingbird is a timeless book, but until now it's only been in the dated medium of print. However, Harper Lee announced that she is allowing her novel to become an ebook and digital audiobook. "I'm still old-fashioned. I love dusty old books and libraries. I am amazed and humbled that Mockingbird has survived this long. This is Mockingbird for a new generation."